Catalog Number: P002291
Sequence: Lys-Arg-Asn-Pro-Gly-Ser-Gln-Lys-Arg-Phe-Pro-Ser-Asn-Cys-Gly-Arg-Asp
Synonym: Phosphorylase Kinase beta-Subunit Fragment (420-436)
CAS Number: [150829-21-3]
Molecular Weight: 1946.2
Molecular Formula: C 7 9 H 1 3 0 N 3 1 O 2 5 S
* Refer to Certificate of Analysis for lot specific data (including water content).
The activity of the γ-subunit of the phosphorylase kinase is regulated by the α- and β-subunits. This β-subunit fragment inhibits the activity of the γ-subunit-calmodulin complex. The peptide is also a substrate for this complex and may represent a key autoinhibitory sequence of the phosphorylase kinase. It shows sequence homology with phosphorylase b, the natural substrate of the kinase. [Sanchez, VE; Carlson, GM., _J. Biol. Chem_., **268**, 17889, (1993)].
MW: 1946.2